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Finding the Fourth Proportional to 7,664.60, 11,496.90 and 6,368.60

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Solution

The fourth proportional to 7,664.60, 11,496.90 and 6,368.60 is: 9,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.60 : 11,496.90 = 6,368.60 : x
  2. Step 2: Convert to fraction form
    7,664.60/11,496.90 = 6,368.60/x
  3. Step 3: Cross multiply
    7,664.60x = 11,496.90 × 6,368.60
  4. Step 4: Simplify right side
    7,664.60x = 73,219,157.34
  5. Step 5: Solve for x
    x = 73,219,157.34/7,664.60
  6. Step 6: Final answer
    x = 9,552.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.